D70mm Refractive Glued Achromatic Objective Lens for DIY Astronomical Telescope(73F400 Green Film Turned Black)
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D70mm achromatic objective lens devised for DIY astronomical telescopes, ensuring clear and sharp images. Available in three focal lengths: 400mm, 280mm, and 330mm, allowing for versatile viewing options for stargazing enthusiasts. Coated with adhesive blue, green, or standard film for enhanced light transmission and reduced chromatic aberration. Easy to assemble: Ensure the thin side of the lens faces the object and the thicker side faces the lens tube for optimal performance. Each package contains 1 piece of the lens, making it a perfect choice for hobbyists looking to upgrade or build their own telescope.
Description
(1)
D70mm achromatic objective lens devised for DIY astronomical telescopes, ensuring clear and sharp images. Available in three focal lengths: 400mm, 280mm, and 330mm, allowing for versatile viewing options for stargazing enthusiasts. Coated with adhesive blue, green, or standard film for enhanced light transmission and reduced chromatic aberration. Easy to assemble: Ensure the thin side of the lens faces the object and the thicker side faces the lens tube for optimal performance. Each package contains 1 piece of the lens, making it a perfect choice for hobbyists looking to upgrade or build their own telescope.
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